Coolant leak on on Air Venturi compressor

Chuckd_Retired · Jul 6, 2025

Went to start the compressor yesterday and found it had a massive coolant leak at the compressor cylinder head. It appears that the coolant shroud cracked over the winter. I'd have to guess that the coolant must have frozen.

Do any of you mix antifreeze in thee coolant tank?

Hoping I can fix it with a good 2 part epoxy.

SLICKNICK · Jul 6, 2025

JB weld should fix that. No real water pressure builds up. If that doesn’t work, I may have an old head in my garage I could send you.

Bayward · Jul 6, 2025

To answer your question, yes, I use antifreeze. I put 50/50 Dexcool in my GX4csi and I live in Florida. GX recommends antifreeze in colder climates.

Chuckd_Retired · Jul 8, 2025

Bayward, Thanks. I'll do a 50/50 mixture when I refill the coolant tank.
Slicknick, I did a JB Weld repair so we will see how that works. Like you said there is no real water pressure. Air Venturi did reply to my support email and gave me a link to where I can buy the replacement shroud in case the repair does not work.

Now I need to do a Goggle search and see if I can find the torque specs for the cylinder head screws.

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Coolant leak on on Air Venturi compressor

Chuckd_Retired

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SLICKNICK

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Bayward

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Chuckd_Retired

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